Expanding the genetic alphabet

Since the beginning of time, the genetic alphabet in all living things has consisted of 4 letters. Now, scientists have discovered a way expand the genetic code to store and use orders of magnitude more information than ever before. Deoxyribonucleic acid (DNA) is the cellular instructions for proteins: little machines in your cells that perform important functions. DNA normally contains 4 nucleotides (A, T, G, … Continue reading Expanding the genetic alphabet